FN-6179: fix tablet nodes overlay stacking

Prevent the NodesView tablet overlay from letting underlying content bleed through.

- make the tablet nodes management overlay fixed, fullscreen, and scrollable with the app background
- add a regression test that asserts the tablet overlay media query and rule properties
- add a patch changeset for the published CLI package bundle

Files changed:
 .changeset/fn-6179-tablet-nodes-overlay.md         |  5 +++++
 packages/dashboard/app/components/NodesView.css    | 12 ++++++++++-
 .../app/components/__tests__/NodesView.test.tsx    | 23 ++++++++++++++++++++--
 3 files changed, 37 insertions(+), 3 deletions(-)

Fusion-Task-Id: FN-6179

Fusion-Task-Lineage: 9455b38e-c32f-4865-917a-a06c1cb38840

.changeset/fn-6179-tablet-nodes-overlay.md

@@ -0,0 +1,5 @@
+---
+"@runfusion/fusion": patch
+---
+
+Fix the Nodes view tablet overlay so node cards and topology content no longer bleed through node detail modals.

packages/dashboard/app/components/NodesView.css

@@ -717,6 +717,16 @@
   .nodes-view-section-title {
     font-size: calc(var(--space-md) + var(--space-xs) / 4);
   }
-
-
+}
+
+/* ── Nodes View Tablet Overlay ───────────────────────────────────────── */
+@media (min-width: 769px) and (max-width: 1024px) {
+  .nodes-management-overlay {
+    position: fixed;
+    inset: 0;
+    z-index: 50;
+    background: var(--bg);
+    overflow-y: auto;
+    -webkit-overflow-scrolling: touch;
+  }
 }

packages/dashboard/app/components/__tests__/NodesView.test.tsx

@@ -106,9 +106,8 @@ function makeUseNodesResult(overrides: Partial<ReturnType<typeof useNodes>> = {}
   };
 }
 
-function extractMobileMediaBlocks(css: string): string {
+function extractMediaBlocks(css: string, regex: RegExp): string {
   const blocks: string[] = [];
-  const regex = /@media[^{]*\(max-width: 768px\)[^{]*\{/g;
   let match: RegExpExecArray | null;
 
   while ((match = regex.exec(css)) !== null) {
@@ -130,6 +129,14 @@ function extractMobileMediaBlocks(css: string): string {
   return blocks.join("\n");
 }
 
+function extractMobileMediaBlocks(css: string): string {
+  return extractMediaBlocks(css, /@media[^{]*\(max-width: 768px\)[^{]*\{/g);
+}
+
+function extractTabletMediaBlocks(css: string): string {
+  return extractMediaBlocks(css, /@media[^{]*\(min-width: 769px\)[^{]*\(max-width: 1024px\)[^{]*\{/g);
+}
+
 function extractRuleBlock(css: string, selector: string): string {
   const escapedSelector = selector.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
   const matches = [...css.matchAll(new RegExp(`${escapedSelector}\\s*\\{([^}]*)\\}`, "g"))];
@@ -202,6 +209,18 @@ describe("NodesView", () => {
     expect(screen.getByRole("button", { name: "Close nodes view" })).toBeInTheDocument();
   });
 
+  it("defines nodes overlay as a fixed fullscreen tablet panel", () => {
+    const tabletCss = extractTabletMediaBlocks(loadAllAppCss());
+    const overlayRule = extractRuleBlock(tabletCss, ".nodes-management-overlay");
+
+    expect(overlayRule).toContain("position: fixed;");
+    expect(overlayRule).toContain("inset: 0;");
+    expect(overlayRule).toContain("z-index: 50;");
+    expect(overlayRule).toContain("background: var(--bg);");
+    expect(overlayRule).toContain("overflow-y: auto;");
+    expect(overlayRule).toContain("-webkit-overflow-scrolling: touch;");
+  });
+
   it("renders docker stat and passes docker data to matching node card", () => {
     mockUseNodes.mockReturnValue(makeUseNodesResult({
       nodes: [makeNode({ id: "node-1", name: "Alpha", type: "remote", url: "https://alpha.node" })],